Humans
- Life
Readers ponder mitochondria, Neandertal diets, deep sea corals and more
Readers had questions about mitochondrial DNA, Neandertal diets, deep ocean corals and more.
- Archaeology
Ancient Angkor’s mysterious decline may have been slow, not sudden
Analyzing sediment from the massive city’s moat challenges the idea that the last capital of the Khmer Empire collapsed suddenly.
- Health & Medicine
The FDA says don’t buy young plasma therapies. Here’s why
Infusions of plasma from young people may hold the secret of youth, but there’s not much evidence to support the idea yet.
- Anthropology
African hominid fossils show ancient steps toward a two-legged stride
New Ardipithecus ramidus fossils reveal how hominids were shifting toward humanlike walking more than 4 million years ago.
- Health & Medicine
A ban on artificial trans fats in NYC restaurants appears to be working
New Yorkers’ levels of artificial trans fats dropped, especially in people who ate out the most, after a citywide ban on the fats in restaurant foods.
- Chemistry
Why kids may be at risk from vinyl floors and fire-resistant couches
Children from homes with all vinyl floors and flame-retardant sofas show higher levels of some synthetic chemicals in their bodies than other kids.
- Archaeology
Tooth plaque shows drinking milk goes back 3,000 years in Mongolia
The hardened plaque on teeth is helping scientists trace the history of dairying in Mongolia.
- Psychology
STEM professors’ beliefs on intelligence may widen the racial achievement gap
Seeing intelligence as fixed can result in lower grades, especially for certain minorities
- Climate
Climate change could increase foodborne illness by energizing flies
Warmer, more lively house flies could spread more Campylobacter bacteria by landing on more food.
- Health & Medicine
Congo’s Ebola outbreak is a testing ground for new treatments
The first multidrug clinical trial of Ebola treatments is underway amid an outbreak in Congo.
- Archaeology
The spread of Europe’s giant stone monuments may trace back to one region
Megaliths spread across the continent due to seafarers’ influence, researcher says.
- Animals
A rare, ancient case of bone cancer has been found in a turtle ancestor
A 240-million-year-old fossil reveals the oldest known case of bone cancer in an amniote, a group that includes mammals, birds and reptiles.
